FB2026_03 , released September 17, 2026
Aberration: Dmel\R(1;Y)6AX2
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General Information
Symbol
R(1;Y)6AX2
Species
D. melanogaster
Name
FlyBase ID
FBab0047736
Feature type
ring_chromosome
Computed Cytological Breakpoints (relative to progenitor)
Sequenced Breakpoints (relative to progenitor)
Member of large scale dataset(s)
Nature of Aberration
Cytological Order
Progenitor
In(1)EN
(Hill and Golic, 2015)
C(1;Y)30
(Hill and Golic, 2015)
Mutagen
I-CreI
(Hill and Golic, 2015)
X ray
(Hill and Golic, 2015)
Class of aberration (relative to wild type)
ring_chromosome
(Hill and Golic, 2015)
Class of aberration (relative to progenitor)
Cytological Breakpoints (relative to progenitor)
Causes alleles
Carries alleles
Transposon Insertions
P{FRT(whs)}75B
(Hill and Golic, 2015)
Formalized genetic data
Genetic mapping information
Comments
Comments on Cytology

Ring-X chromosome that also carries some portion of the Y chromosome. It was produced by: 1) I-CreI mediated exchange between the rDNA repeats present on the In(1)EN and C(1;Y)30 chromosomes, producing a C(1)TM chromosome; 2) meiotic exchange in females carrying the newly generated C(1)TM chromosome (details of steps 1 and 2 are in FBrf0213213); 3) treatment of males carrying the ring chromosome with X rays and crossing them with C(1)DX/Y females, followed by selection for improved viability of males. The improved viability is likely a consequence of deletion of rearrangement of a portion(s) of the heterochromatin.

(Hill and Golic, 2015)
Sequence Crossreferences
DDBJ / EMBL / GenBank
DNA sequence
Protein sequence
Gene Deletion and Duplication Data
Genes Deleted / Disrupted
Complementation Data
Completely deleted / disrupted
Partially deleted / disrupted
Molecular Data
Completely deleted
Partially deleted
Genes NOT Deleted / Disrupted
Complementation Data
 
Molecular Data
 
Genes Duplicated
Complementation Data
Completely duplicated
Partially duplicated
Molecular Data
Completely duplicated
Partially duplicated
Genes NOT Duplicated
Complementation Data
 
Molecular Data
 
Affected Genes Inferred by Location (0)
    If no genes are listed here, it may be because the affected region is very large. The JBrowse insert above may show an error for the same reason, and other FlyBase tools such as CytoSearch may also fail for large regions. You can contact FlyBase for more help.
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    Phenotypic Data
    In combination with other aberrations
    NOT in combination with other aberrations
    Stocks (1)
    Notes on Origin
    Discoverer
     
    Balancer / Genotype Variants of the Aberration
     
    Separable Components
     
    Other Comments
     
    Synonyms and Secondary IDs (1)
    Reported As
    Symbol Synonym
    R(1;Y)6AX2
    (Hill and Golic, 2015)
    Name Synonyms
    Secondary FlyBase IDs
      References (1)